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Recognised as Colour

#66A4F2

  • #66A4F2
  • Blue
  • Dark
  • Nearest: Cornflower blue

#66A4F2 is a blue with RGB values 102, 164, 242 and HSL 213°, 84%, 67%. It is a dark colour, so black text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#66A4F2#66A4F2
HEX#66A4F2
RGBrgb(102, 164, 242)
RGB (0–1)0.4, 0.6431, 0.949
RGB percentages40%, 64.3%, 94.9%
HSLhsl(213.4, 84.3%, 67.5%)
HSV / HSBhsv(213.4, 57.9%, 94.9%)
CMYK57.9%, 32.2%, 0%, 5.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,726,898
CSS custom property--colour: #66A4F2;

Brightness & contrast

Relative luminance0.35787WCAG 2.x, 0 is black and 1 is white
Perceived brightness159.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.16:1
Contrast with white2.57:1WCAG normal text: Fail
Contrast with black8.16:1WCAG normal text: AAA
Greyscale equivalent#9C9C9C
Inverted#995B0D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#84A9F5no red cones; affects about 1% of men; ΔE 6.4 from the original
Deuteranopia#719BF0no green cones; the most common form, about 1% of men; ΔE 7.4 from the original
Tritanopia#00B6C0no blue cones; rare, and affects men and women equally; ΔE 46.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.57:1WCAG large text: Fail
Contrast with black, large text8.16:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 9.1Steel blue · ΔE 20.1Dodgerblue · ΔE 20.9Deep skyblue · ΔE 21.4Light skyblue · ΔE 25.2Sky blue · ΔE 32.2
Nearest named CSS colourCornflower blue (#6495ED)ΔE 9.08, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F2B466
Analogous#66EAF2, #6E66F2
Triadic#F266A4, #A4F266
Split complementary#F26E66, #EAF266
Tetradic#F266EA, #F2B466, #66F26E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#F3F8FE
Lighter +20%#C4DCFA
Lighter +10%#95C0F6
Darker −10%#3788EE
Darker −20%#136DDF
Darker −30%#0F56B0
Darker −40%#0B3F81
More saturated +25%#59A3FF
Less saturated −25%#7BA6DD

Channel breakdown

R102
G164
B242
Red102 (40%)
Green164 (64.3%)
Blue242 (94.9%)
Hue213.43°
Saturation (HSL)84.34%
Lightness67.45%
Dominant channelBlue
Hex per channelR 66 · G A4 · B F2

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Every value on this page was computed from “66a4f2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.